I was desperate to find a way to get my DH to eat broccoli and cauliflower. I found that he would eat it with cheese sauce on top. Now that he's accustomed to eating those veggies, I don't have to resort to cheese sauce any more, unless we're in the mood for it.
My version of this recipe started with a recipe in a magazine. The original recipe called for carrots, beans, peas, and squash artistically arranged in an ovenproof bowl (as the shell for the mashed potatoes). That seemed so time consuming. I decided to limit the veggie shell to sliced carrots. You can use any combination of vegetables you like for the shell.
These cookies are rolled in sesame seeds -- that might not appeal to everyone. I like the sesame seed coating, but it's not quite perfect for me, and I'll be experimenting with different seeds/nuts to see if I find something better.